Study on Efficiency and Development of Anti-Anthracnose Disease Products for Chili Peppers with Natural Substances, Nakhon Ratchasima Province, Thailand

Abstract

The anthracnose outbreak occurs during the rainy season or a long raining period that facilitates the growth of fungi. Anthracnose can be commonly found during chili pepper growing, and it has caused considerable damage to farmers resulting in reduced production. Most farmers use chemicals to prevent anthracnose disease-causing toxic residues in the environment. The chemicals are also expensive and dangerous to the environment. For the study on the development of anti-anthracnose disease products with natural substances for chili peppers, the researchers realized the importance of the purposes of 1) to study and develop natural substances and agricultural waste materials which are environmentally friendly products to prevent anthracnose disease in chili peppers and 2) to compare the efficiency between using chemicals substances that are commonly used at present. The study on efficiency and development of anti-anthracnose disease products on chili peppers employed the Completely Randomized Design (CRD) to study the efficacy of substances used to prevent anthracnose disease. There are 4 treatments used in this study includes 1) Control, 2) Natural product Formula I (Bio-fermented water No. I), 3) Natural product Formula II (Bio-fermented water No. II), and 4) Chemical Product (Mancozeb chemical). Research operates by spray treatment products on chili every 7 days. After spraying treatments for 24 hours, spray Colletotrichum spp. to infect anthracnose in the period of three weeks. The study indicated that the natural product formula I and the natural product formula II found the efficiency of preventing the disease in chili peppers in significantly at 95 percent. The natural product formula I was highest anthracnose disease prevention, followed by the Mancozeb chemical, natural product formula II, and control, respectively.